package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("image.png");
        FileOutputStream fos=new FileOutputStream("image_cp2.png");
        byte[] data=new byte[1024*10];
        int d;
        long start=System.currentTimeMillis();
        while ((d=fis.read(data)) !=-1){
            fos.write(data,0,d);
        }
        long end=System.currentTimeMillis();
        System.out.println("复制完毕,耗时"+(end-start)+"ms");
        fis.close();
        fos.close();
    }
}
